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Taxon profile

species

Imbricaria annulata (Reeve, 1844)

kingdom Animalia - animals »  phylum Mollusca - mollusks »  class Gastropoda - gastropods »  order Neogastropoda »  family Mitridae - Miters »  genus Imbricaria

Scientific synonyms

Subcancilla annulata L. A. Reeve, 1844
Mitra acutilirata Sowerby, 1874

Images

Imbricaria annulata

Author: Herrmann & Salisbury

Imbricaria annulata

Author: Schepman. M.M.

Imbricaria annulata

Author: Cernohorsky, W.O.

Description

Shell to 35.0 mm in length, elongate-ovate to fusiform-elongate, teleoconch of 7-9 weakly convex to angulate whorls, protoconch of 3-3.2 glassy-white embryonic whorls; early spire whorls with 3 narrow, flat cords which are separated by punctate spiral grooves, on last 3 whorls interspaces widen and spiral cords become elevated and angulate to a lesser or greater degree and number 3-5 on the penultimate and 11-15 on the body whorl in addition to 3-5 oblique cords on the siphonal fasciole; the sutural spiral cord is always small, whereas the second anterior spiral cord is usually considerably larger; interspaces are usually concave, axially striate and sometimes contain a low and weak intermediate spiral cord. Aperture longer than the spire, smooth within, columella narrowly calloused and with 5-6 oblique folds, siphonal notch distinct, siphonal canal straight. White in color, body whorl usually with an interrupted, broad, reddish-brown central band, body whorl suture with a few larger reddish-brown spots, spiral cords always with laterally elongate orange-brown to reddish-brown spots, aperture porcellaneous-white.
Cernohorsky, W.O., 1991. The Mitridae of the World. Part II. The Subfamily Mitrinae Concluded and Subfamilies Imbricariinae and Cylindromitrinae..

Interchangeable taxa

This is an easily recognized species which is very variable in form ranging from broad individuals with prominantly elevated spiral cords to slender specimens with subdued spirals.
Cernohorsky, W.O., 1991. The Mitridae of the World. Part II. The Subfamily Mitrinae Concluded and Subfamilies Imbricariinae and Cylindromitrinae..

Distribution

Range - From the Red Sea to China, Japan and the Marquesas Islands.
Cernohorsky, W.O., 1991. The Mitridae of the World. Part II. The Subfamily Mitrinae Concluded and Subfamilies Imbricariinae and Cylindromitrinae..
Author: Jan Delsing

Similar species

Subcancilla lichtlei M. Herrmann & R. Salisbury, 2012

Links and literature

EN Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [as Subcancilla annulata Reeve, 1844]
Data retrieved on: 23 November 2013

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